Similar issue, all of the sudden half my network is out, keeping dropping the connection , T1700G-28TQ v 3 i am using, sfp ports specifically, uplink. Nothing in the logs either. I can shortly reset...

@malvino Having same issue with my T1700G-28TQ v3 just all of the sudden bam, reset the connection its up for 1-5 minutes down again, although there are no logs showing any issues. Mine are specific...